51305052 has 24 divisors (see below), whose sum is σ = 119996800. Its totient is φ = 17060976.

The previous prime is 51305047. The next prime is 51305077. The reversal of 51305052 is 25050315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399 + ... + 10137.

Almost surely, 2^51305052 is an apocalyptic number.

It is an amenable number.

51305052 is an abundant number, since it is smaller than the sum of its proper divisors (68691748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51305052 is a wasteful number, since it uses less digits than its factorization.

51305052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10185 (or 10183 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 51305052 is about 7162.7544980964. The cubic root of 51305052 is about 371.5808957926.

Adding to 51305052 its reverse (25050315), we get a palindrome (76355367).

The spelling of 51305052 in words is "fifty-one million, three hundred five thousand, fifty-two".